The vampire at the dentist
Secret words: sunrise, mirror, garlic
Doctor, I'm so sorry about the hour. My schedule is complicated: I saw a sunrise once and was off work for a week. And please put that mirror away, I really don't need to see anything. Also, whatever you do, no mint. My grandmother warned me about garlic and dentists.
The listeners wrote down “sunrise” and “mirror”, which sounded like vampire clichés, and “mint”, which was a decoy. “Garlic” slipped past them inside a family story: a point for the storyteller.